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I did test the electricity usage . The smart meter was whining 14.2kwh vs 19 on the vsmart. We didn’t use the gas hob. (Our only other gas appliance) . A large estimation?

I’m noticing dips in electricity usage by around 75% according to vsmart. Any ideas why? That’s bigger then I thought!

Yea should be fine. It did heat up ableist a bit slower. But might just keep the pump at 1

The loft takes longer to get up to tempreture but I’m gonna bleed then rads and it will probably be ok

I had a look this morning ina. Real life heating scenario. It was 51 flow and 33 return. That looks much better!

Why do you need a external valve when there’s one built in?

Vsmart however always get tempreture set very well with little or no spikes.

Interesting. I got a 627 system boiler. Vsmart and a vaillant unistor. I have 14 rads a big 5 bed house. 1960s home. Large windows. Cavity with retro fitted insulation. I am using 26000kwh a year on gas. I do use have a gas job but that’s it. I still expect a bit better.

There is a automatic selection. That chooses 2.5. But I find 1 works well in September. But that 1 I set never changes unless i change it myself

Vsmart can set tempreture of cylinder and it always hits that tempreture. Always works well. There is a diverter valve built in boiler. Never seems to be a issue

They are separate to my vsmart. I have about 5 which are standard Honeywell, hall way doesn’t have one as it’s next to vsmart. And 7 which are blue tooth which turn have a schedule where for example the living room turns off at night. Just to note they are not interfaced with the vsmart.

The Flow temp is automatic based on a vsmart. As weather gets colder I just increase heating curve which increases target flow temp. I’ll keep a eye on radiators in the loft Incase I need a bit more. But I suspect it should be ok as it’s a 27kw boiler with 13 rads.

maybe it’s starting to work as expected now?

D.000 partial load auto D.005 heating target flow temp 51 D.006 outlet tempreture target 50 D.040 flow tempreture actual value 50 D.041 return tempreture actual value 34 D.071 max heating target flow temp 75

That’s disappointing because you would expect auto to modulate based on the change in resistance. Eg trv closed/open

The gap between flow and return has increase by 2 degrees. When pump is at lowest setting (53%)

Ok I’ve set it to 1. I will check if anything changes. I will also report electricity usage as vsmart displays that

Ok given I have 13 radiators with trv averaging about 2.5 out of 5 shall I start with with 1? If it works leave it at that?

Ok it was actually set to 100%! I didn’t know. So I set it to auto. The actual value was 100%. I rebooted boiler put heating on and the actual value is still 100% despite being auto? Will it take time to tweak itself?

What’s wrong with auto?